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| 1 | Controlled growth of silver nanoparticles in a hydrothermal process显示文摘A two-step synthesis was used to control the shape of silver nanoparticles. First, a few spherical silver nanoparticles, ~10nm in size, were prepared via reduction of Ag+ ions in aqueous Ag(NH3)2NO3 by poly(N-vinyl-2-pyrrolidone) (PVP). Then, in a subsequent hydrothermal treatment, the remaining Ag+ ions were reduced by PVP into polyhedral nanoparticles, or larger spherical nanoparticles formed from the small spherical seed silver nanoparticles in the first step. The morphology and size of the resultant particles depend on the hydrothermal temperature, PVP/Ag molar ratio and concentration of Ag+ ions. By using UV-visible spectroscopy (UV-vis), transmission electron microscopy (TEM) and powder X-ray diffraction (XRD), the possible growth mechanism of the silver nanoparticles was discussed. | Juan Zou Yao Xu Bo Hou Dong Wu Yuhan Sun | 2007 | China Particuology2007，5，3： | 6 |
| 2 | In situ monitoring of atmospheric nitrous acid based on multi-pumping flow system and liquid waveguide capillary cell显示文摘In the last four decades, various techniques including spectroscopic, wet chemical and mass spectrometric methods, have been developed and applied for the detection of ambient nitrous acid(HONO). We developed a HONO detection system based on long path photometry which consists of three independent modules i.e., sampling module, fluid propulsion module and detection module. In the propulsion module, solenoid pumps are applied. With solenoid pumps the pulsed flow can be computer controlled both in terms of pump stroke volume and pulse frequency, which enables the attainment of a very stable flow rate. In the detection module, a customized Liquid Waveguide Capillary Cell(LWCC) is used. The customized LWCC pre-sets the optical fiber in-coupling with the liquid wave guide, providing the option of fast startup and easy maintenance of the absorption photometry. In summer 2014, our system was deployed in a comprehensive campaign at a rural site in the North China Plain. More than one month of high quality HONO data spanning from the limit of detection to 5 ppb were collected. Intercomparison of our system with another established system from Forschungszentrum Juelich is presented and discussed. In conclusion, our instrument achieved a detection limit of 10 ppt V within2 min and a measurement uncertainty of 7%, which is well suited for investigation of the HONO budget from urban to rural conditions in China. | Yuhan Liu Keding Lu Huabin Dong Xin Li Peng Cheng Qi Zou Yusheng Wu Xingang Liu Yuanhang Zhang | 2016 | Journal of Environmental Sciences2016，28，5： | 4 |
| 3 | XPS study of potassium-promoted molybdenum carbides for mixed alcohols synthesis via CO hydrogenation显示文摘The X-ray photoelectron spectroscopy (XPS) was used to investigate the surface characteristic of potassium-promoted or un-promoted both β-Mo2C and α-MoC1-x pretreated by syngas at different temperatures,and the promotional effect of potassium on the catalytic performance was also studied.XPS results revealed that the content of surface Mo and its valence distribution between β-Mo2C and α-MoC1-x were quite different.Promoted by potassium,the remarkable changes were observed for surface composition and valence of Mo distribution over β-Mo2C.Potassium had strong electronic effect on β-Mo2C,which led to a higher Mo4+ content.On the contrary,potassium had little electronic effect on α-MoC1-x,and K-Mo interaction was weak.Therefore,Mo0 and Mo2+ became the dominant species on the catalyst surface,and the Mo4+ content showed almost no increase as the pretreatment temperature enhanced.In terms of catalytic performance of molybdenum carbides,the increase in Mo0 most likely explained the increase in hydrocarbon selectivity,yet Mo4+ might be responsible for the alcohols synthesis. | Minglin Xiang Debao Li Juan Zou Wenhuai Li Yuhan Sun Xichun She | 2010 | Journal of Natural Gas Chemistry2010，19，2： | 3 |
| 4 | Novel function of perforin in negatively regulating CD4^+ T cell activation by affecting calcium signaling显示文摘Perforin 是主要从事调停的形成毛孔的蛋白质目标 T 房间死亡并且被细胞毒素的 T 淋巴细胞(CTL ) 和自然漂亮房间采用。然而,它是否也在常规 CD4+ T 房间功能起一个作用,仍然保持不清楚。这里,我们报导那在 perforin 缺乏(PKO ) 老鼠, CD4+ T 房间是响应 T 的 hyperproliferative 房间受体(TCR ) 刺激。hyperproliferation 的这个特征被改进在房间分割并且在 IL-2 分泌物伴随。看起来, perforin 缺乏不在胸腺怒气和淋巴节点影响 T 房间开发。在 vivo, perforin 缺乏导致增加的抗原特定的 T 房间增长和抗体生产。而且, PKO 老鼠更产生试验性的自体免疫的眼色素层炎。探讨分子的机制,我们发现在 TCR 刺激以后,从 PKO 老鼠的 CD4+ T 房间显示增加的细胞内部的钙流动并且随后提高抄写因素 NFAT1 的激活。我们的结果显示 perforin 在由影响 TCR 依赖的 Ca2+ 发信号调整 CD4+ T 房间激活和有免疫力的反应起一个否定作用。 | Enguang Bi Chunjian Huang Yu Hu Xiaodong Wu Weiwen Deng Guomei Lin Zhiduo Liu Lin Tian Shuhui Sun Kairui Mao Jia Zou Yuhan Zheng Bing Sun | 2009 | Cell Research2009，19，7： | 2 |
| 5 | Nickel and potassium co-modified β-Mo_2C catalyst for CO conversion显示文摘Nickel and potassium co-modified β-Mo2C catalysts were prepared and used for CO hydrogenation reaction. The major products over β-Mo2C were C1-C4 hydrocarbons, only few alcohols were obtained. Addition of potassium resulted in remarkable selectivity shift from hydrocarbons to alcohols at the expense of CO conversion over β-Mo2C. Moreover, it was found that potassium enhanced the ability of chain propagation with a higher C2+OH production. Modified by nickel, β-Mo2C showed a relatively high CO conversion, however, the products were similar to those of pure β-Mo2C. When co-modified by nickel and potassium, β-Mo2C exhibited high activity and selectivity towards mixed alcohols synthesis, and also the whole chain propagation to produce alcohols especially for the stage of C1OH to C2OH was remarkably enhanced. It was concluded that the Ni and K had, to some extent, synergistic effect on CO conversion. | Minglin Xiang Juan Zou Debao Li Wenhuai Li Yuhan Sun Xichun She | 2009 | Journal of Natural Gas Chemistry2009，18，2： | 2 |
| 6 | Biomarkers of aging显示文摘Aging biomarkers are a combination of biological parameters to(i)assess age-related changes,(ii)track the physiological aging process,and(iii)predict the transition into a pathological status.Although a broad spectrum of aging biomarkers has been developed,their potential uses and limitations remain poorly characterized.An immediate goal of biomarkers is to help us answer the following three fundamental questions in aging research:How old are we?Why do we get old?And how can we age slower?This review aims to address this need.Here,we summarize our current knowledge of biomarkers developed for cellular,organ,and organismal levels of aging,comprising six pillars:physiological characteristics,medical imaging,histological features,cellular alterations,molecular changes,and secretory factors.To fulfill all these requisites,we propose that aging biomarkers should qualify for being specific,systemic,and clinically relevant. | Aging Biomarker Consortium Hainan Bao Jiani Cao Mengting Chen Min Chen Wei Chen Xiao Chen Yanhao Chen Yu Chen Yutian Chen Zhiyang Chen Jagadish K Chhetri Yingjie Ding Junlin Feng Jun Guo Mengmeng Guo Chuting He Yujuan Jia Haiping Jiang Ying Jing Dingfeng Li Jiaming Li Jingyi Li Qinhao Liang Rui Liang Feng Liu Xiaoqian Liu Zuojun Liu Oscar Junhong Luo Jianwei Lv Jingyi Ma Kehang Mao Jiawei Nie Xinhua Qiao Xinpei Sun Xiaoqiang Tang Jianfang Wang Qiaoran Wang Siyuan Wang Xuan Wang Yaning Wang Yuhan Wang Rimo Wu Kai Xia Fu-Hui Xiao Lingyan Xu Yingying Xu Haoteng Yan Liang Yang Ruici Yang Yuanxin Yang Yilin Ying Le Zhang Weiwei Zhang Wenwan Zhang Xing Zhang Zhuo Zhang Min Zhou Rui Zhou Qingchen Zhu Zhengmao Zhu Feng Cao Zhongwei Cao Piu Chan Chang Chen Guobing Chen Hou-Zao Chen Jun Chen Weimin Ci Bi-Sen Ding Qiurong Ding Feng Gao Jing-Dong JHan Kai Huang Zhenyu Ju Qing-Peng Kong Ji Li Jian Li Xin Li Baohua Liu Feng Liu Lin Liu Qiang Liu Qiang Liu Xingguo Liu Yong Liu Xianghang Luo Shuai Ma Xinran Ma Zhiyong Mao Jing Nie Yaojin Peng Jing Qu Jie Ren Ruibao Ren Moshi Song Zhou Songyang Yi Eve Sun Yu Sun Mei Tian Shusen Wang Si Wang Xia Wang Xiaoning Wang Yan-Jiang Wang Yunfang Wang Catherine CL Wong Andy Peng Xiang Yichuan Xiao Zhengwei Xie Daichao Xu Jing Ye Rui Yue Cuntai Zhang Hongbo Zhang Liang Zhang Weiqi Zhang Yong Zhang Yun-Wu Zhang Zhuohua Zhang Tongbiao Zhao Yuzheng Zhao Dahai Zhu Weiguo Zou Gang Pei Guang-Hui Liu | 2023 | Science China(Life Sciences)2023，66，5： | 2 |
| 7 | Catalytic performance of Fe modified K/Mo_2C catalyst for CO hydrogenation显示文摘Fe modified and un-modified K/Mo2C were prepared and investigated as catalysts for CO hydrogenation reaction. Compared with K/Mo2C catalyst, the addition of Fe increased the production of alcohols, especially the C2+OH. Meanwhile, considerable amounts of C5+ hydrocar- bons and C2= -C4= were formed, whereas methane selectivity greatly decreased. Also, the activity and selectivity of the catalyst were readily affected by the reaction pressure and temperature employed. According to the XPS results, Mo4+ might be responsible for the production of alcohols, whereas the low valence state of Mo species such as Mo0 and/or Mo2+ might be account for the high activity and selectivity toward hydrocarbons. | Minglin Xiang Dudu Wu Juan Zou Debao Li Yuhan Sun Xichun She | 2011 | Journal of Natural Gas Chemistry2011，20，5： | 1 |
| 8 | TeaPGDB:Tea Plant Genome Database显示文摘As the most widely consumed beverage in the world,tea has various nutritional,economic,and global cultural values.With the development of the third-generation sequencing technology,several genome sequences of tea plants have been published.These genomic data have pivotal information that is of benefit to tea plant breeders and biologists in advancing tea plant improvement and the final quality of tea products.We hereby present the integrative online database,Tea Plant Genome Database(TeaPGDB;http://gffzz33ea8dac98494cc2hq0un99np9bwx6559.ffgz.tsg.suse.edu.cn/tea),which incorporates the published genome sequences of tea plants.The current release of TeaPGDB hosts published tea plant genome data with various online tools,including JBrowse,gene search,SSR search,BLAST.TeaPGDB also contains a download server,which provides access for the download of genome-related data and rich annotation files.TeaPGDB is committed to collecting,integrating,and annotating published tea plant genome data,providing data support for research on tea plant heredity,evolution,breeding for resistance,plant improvement,and facilitating the characterization of important traits or flavor related genes in the community.Compared with other tea plant databases,this database not only contains more complete genome data and gene annotation information,but also has a user-friendly interface for researchers in the field. | Xiaogang Lei Ya Wang Yuhan Zhou Yongzhong Chen Hongyuan Chen Zhongwei Zou Lin Zhou Yuanchun Ma Fei Chen Wanping Fang | 2021 | Beverage Plant Research2021，1，1： | 1 |
| 9 | Insight into demand-driven preparation of single-atomic mediators for lithium–sulfur batteries显示文摘Lithium-sulfur(Li-S) batteries have attracted considerable attention as one of the most appealing energy storage systems.Strenuous efforts have been devoted to tackling the tremendous challenges,mainly pertaining to the severe shuttle effect,sluggish redox kinetics and lithium dendritic growth.Single-atomic mediators as promising candidates exhibit impressive performance in addressing these intractable issues.Related research often utilizes a trial-and-error approach,proposing solutions to fabricate single-atomic materials with diversified features.However,comprehensive review articles especially targeting demand-driven preparation are still in a nascent stage.Inspired by these considerations,this review summarizes the design of single-atomic mediators based on the application case-studies in LiS batteries and other metal-sulfur systems.Emerging preparation routes represented by chemical vapor deposition technology are introduced in a demand-oriented classification.Finally,future research directions are proposed to foster the advancement of single-atomic mediators in Li-S realm. | Miaoyu Lu Yifan Ding Zaikun Xue Ziang Chen Yuhan Zou Jingyu Sun | 2024 | Journal of Energy Chemistry2024，90，3： | 0 |
| 10 | Chemical recycling of polyolefins:a closed-loop cycle of waste to olefins显示文摘The unsuitable disposal of plastic wastes has caused serious environmental pollution,and finding a green manner to address this problem has aroused wide concern.Plastic wastes,especially polyolefin wastes,are rich in carbon and hydrogen,and chemical recycling shows distinct advantages in their conversion into olefins and realizes a closed-loop cycling of plastic wastes.Plastic wastes should be labeled before disposal.The necessity for,and methods of,pretreatment are introduced in this paper and the whole recycling process of polyolefin wastes is also summarized.As the core technology pyrolysis,including thermal,catalytic and solvolysis processes,is introduced in detail due to its potential for future development.We also briefly describe the feasible strategies of pyrolytic oil refining and life cycle assessment of the chemical recycling process.In addition,suggestions and perspectives concerning the industrial improvement of polyolefin chemical recycling are proposed. | Liang Zou Run Xu Hui Wang Zhiqiang Wang Yuhan Sun Mingfeng Li | 2023 | National Science Review2023，10，9： | 0 |
| 11 | Rates of convergence of powered order statistics from general error distribution显示文摘Let{Xn:n≥1}be a sequence of independent random variables with common general error distribution GED(v)with shape parameter v>0,and let Mn,r denote the r-th largest order statistics of X1,X2,...,Xn.With different normalizing constants the distributional expansions and the uniform convergence rates of normalized powered order statistics|Mn,r|p are established.An alternative method is presented to estimate the probability of the r-th extremes.Numerical analyses are provided to support the main results. | Yuhan Zou Yingyin Lu Zuoxiang Peng | 2023 | Statistical Theory and Related Fields2023，7，1： | 0 |
| 12 | Power Allocation and Antenna Selection for Heterogeneous Cellular Networks显示文摘In this paper,we investigate the system performance of a heterogeneous cellular network consisting of a macro cell and a small cell,where each cell has one user and one base station with multiple antennas.The macro base station(MBS)and the small base station(SBS)transmit their confidential messages to the macro user(MU)and the small user(SU)over their shared spectrum respectively.To enhance the system sum rate(SSR)of MBS-MU and SBS-SU transmission,we propose joint antenna selection combined with optimal power allocation(JAS-OPA)scheme and independent antenna selection combined with optimal power allocation(IAS-OPA)scheme.The JAS-OPA scheme requires to know the channel state information(CSI)of transmission channels and interference channels,while the IAS-OPA scheme only needs to know the CSI of transmission channels.In addition,we carry out the analysis for conventional round-robin antenna selection combined with optimal power allocation(RR-OPA)as a benchmark scheme.We formulate the SSR maximization problem through the power allocation between MBS and SBS and propose iterative OPA algorithms for JAS-OPA,IAS-OPA and RR-OPA schemes,respectively.The results show that the OPA schemes outperform the equal power allocation in terms of SSR.Moreover,we provide the closed-form expression of the system outage probability(SOP)for IAS scheme and RR scheme,it shows the SOP performance can be significantly improved by our proposed IAS scheme compared with RR scheme. | Lingyi Kong Yulong Zou Yuhan Jiang Jia Zhu | 2023 | China Communications2023，20，8： | 0 |
| 13 | Single-step thermal carburization synthesis of supported molybdenum carbides from molybdenum-containing methyl-silica显示文摘A novel synthesis route to obtain highly dispersed molybdenum carbides in porous silica is described. The synthesis was carried out by a single-step heat treatment of molybdenum-containing and methyl-modified silica (Mo-M-SiO2) in argon atmosphere at 973 K. Mo-M-SiO2 precursor was facilely obtained via a one-pot synthesis route, using (NH4)6Mo7O24 4H2O (AHM) as molybdenum sources and polymethylhydrosiloxane (PMHS) as silica sources at the initial synthetic step. The optimal C/Mo molar ratio in reaction system for complete carburization of molybdenum species was 7. The carburization process of molybdenum species followed a nontopotactic route involving a MoO2 intermediate phase, which was evidenced by XRD, N2 adsorption-desorption and in situ XPS. Formation mechanism of Mo-M-SiO2 precursor was also proposed by observation of the reaction between AHM and PMHS with TEM. Furthermore, by adding TEOS into silica sources and adjusting TEOS/PMHS mass ratio, crystal phase of molybdenum carbides transferred from β-Mo2C to α-MoC1-x, and SiO2 structure changed from microporous to micro/mesoporous. Catalytic performances of samples were tested using CO hydrogenation as a probe reaction. The supported molybdenum carbides exhibited high selectivity for higher alcohol synthesis compared with bulk β-Mo2C and α-MoC1-x. | Juan Zou Minglin Xiang Bo How Dong Wu Yuhan Sun | 2011 | Journal of Natural Gas Chemistry2011，20，3： | 0 |
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